Final answer:
Judah was completely weakened during the reign of King Josiah as part of the religious reform movement and its subsequent defeat by the Neo-Babylonian Empire.
Step-by-step explanation:
The kingdom of Judah was completely weakened during the reign of King Josiah.
During the reign of King Josiah (640-609 BCE), there was a religious reform movement that aimed to centralize worship of Yahweh and revive the laws of Moses. This movement led to the destruction of local shrines and the strengthening of the temple in Jerusalem as the primary religious center. However, despite these reforms, Judah ultimately fell to the Neo-Babylonian Empire in 586 BCE, resulting in the destruction of Jerusalem and its temple.